Chapter Appendix B
Acronyms, Abbreviations, and NOTAM Contractions
W
| Abbreviation | Meaning |
|---|---|
| W | west |
| WAAS | Wide Area Augmentation System |
| WAN | wide area network |
| WB | westbound |
| WC | work center |
| WCP | Weather Communications Processor |
| WECO | Western Electric Company |
| WED | Wednesday |
| WEF | with effect from; effective from |
| WESCOM | Western Electric Satellite Communications |
| WI | within |
| WIE | with immediate effect, or effective immediately |
| WKDAYS | Monday through Friday |
| WKEND | Saturday and Sunday |
| WMSC | Weather Message Switching Center |
| WMSCR | Weather Message Switching Center Replacement |
| WND | wind |
| WPT | waypoint |
| WSCMO | Weather Service Contract Meteorological Observatory |
| WSFO | Weather Service Forecast Office |
| WSMO | Weather Service Meteorological Observatory |
| WSO | Weather Service Office |
| WSR | wet snow on runway(s) |
| WTHR | weather |
| WTR | water on runway(s) |
| WX | weather |